¿Do we need vacuum refuges for covid-19?

  • Rachel Schraer
  • BBC Health Reporter

Una joven siendo vacunada

Fountain of the image, Getty Images

Many countries are now hoping to offer more shelter vaccines against covid-19 to anticipate new types of infertility.

The World Health Organization (WHO) recommends that doses be given priority to the most vulnerable.

Pero, ¿por qué esta vacuna parece necesitar dose repeatas cuando otras vacunas pueden durar toda la vida?

Different velocities

The frequency with which it is deactivated depends part of the rate at which the virus or bacteria change that se combate.

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